摘要
在高地震烈度地区修建高坝大库是水电开发面临的重大技术问题,须采取有效抗震措施,确保大坝抗震安全,配置抗震钢筋是提高重力坝抗震性能的实用工程措施。以西南地区金沙江中游某水电站为例,采用三维非线性动力有限元法进行抗震配筋计算,通过不同配筋量的分析比较,提出合理可行的大坝抗震配筋方案并应用于工程实践,为类似强震区重力坝抗震配筋提供有益借鉴和参考。
It is an important technical problem for hydropower development to build high dam and large reservoir in high seismic intensity area,and effective anti-seismic measures must be taken to ensure the anti-seismic safety of the dam.The practical engineering measure to improve the seismic performance of gravity dam is to arrange seismic reinforcement.In this paper,taking a large hydropower station as an example,three-dimensional nonlinear dynamic finite element method is used to calculate the seismic reinforcement,and through the analysis and comparison of different reinforcement amount,a reasonable and feasible scheme of dam seismic reinforcement is put forward and applied to engineering practice,which provides a useful reference for similar strong earthquake area gravity dam seismic reinforcement.
作者
吴余生
WU Yusheng(Yunnan Provincial Energy Investment Group Co.,Ltd,Kunming 650228,China)
出处
《水科学与工程技术》
2020年第2期62-65,共4页
Water Sciences and Engineering Technology
关键词
重力坝
抗震安全性
抗震钢筋
gravity dam
seismic safety
seismic reinforcement
